Finding the Third Proportional to 58,593.38 and 90,321.96

Step by Step Solution

1. Step 1: Write the proportion equation
   58,593.38 : 90,321.96 = 90,321.96 : x
2. Step 2: Convert to fraction form
   58,593.38/90,321.96 = 90,321.96/x
3. Step 3: Cross multiply
   58,593.38x = 90,321.96 × 90,321.96
4. Step 4: Simplify right side
   58,593.38x = 8,158,056,627.60
5. Step 5: Solve for x
   x = 8,158,056,627.60/58,593.38
6. Step 6: Final answer
   x = 139,231.72